mskanji.c revision 29818 
1/*
2 *    ja_JP.SJIS locale table for BSD4.4/rune
3 *    version 1.0
4 *    (C) Sin'ichiro MIYATANI / Phase One, Inc
5 *    May 12, 1995
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *      This product includes software developed by Phase One, Inc.
18 * 4. The name of Phase One, Inc. may be used to endorse or promote products
19 *    derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#if defined(LIBC_SCCS) && !defined(lint)
35static char sccsid[] = "@(#)mskanji.c	1.0 (Phase One) 5/5/95";
36#endif /* LIBC_SCCS and not lint */
37
38#include <sys/types.h>
39
40#include <errno.h>
41#include <rune.h>
42#include <stddef.h>
43#include <stdio.h>
44#include <stdlib.h>
45
46rune_t	_MSKanji_sgetrune __P((const char *, size_t, char const **));
47int	_MSKanji_sputrune __P((rune_t, char *, size_t, char **));
48
49int
50_MSKanji_init(rl)
51	_RuneLocale *rl;
52{
53	rl->sgetrune = _MSKanji_sgetrune;
54	rl->sputrune = _MSKanji_sputrune;
55
56	_CurrentRuneLocale = rl;
57	__mb_cur_max = 2;
58	return (0);
59}
60
61rune_t
62_MSKanji_sgetrune(string, n, result)
63	const char *string;
64	size_t n;
65	char const **result;
66{
67	rune_t rune = 0;
68
69	if (n < 1 ) {
70		rune = _INVALID_RUNE;
71	} else {
72		rune = *( string++ ) & 0xff;
73		if ( ( rune > 0x80 && rune < 0xa0 )
74		|| ( rune >= 0xe0 && rune < 0xfa ) ) {
75			if ( n < 2 ) {
76				rune = (rune_t)_INVALID_RUNE;
77				--string;
78			} else {
79				rune = ( rune << 8 ) | ( *( string++ ) & 0xff );
80			}
81		}
82	}
83	if (result) *result = string;
84	return rune;
85}
86
87int
88_MSKanji_sputrune(c, string, n, result)
89	rune_t c;
90	char *string, **result;
91	size_t n;
92{
93	int	len, i;
94
95	len = ( c > 0x100 ) ? 2 : 1;
96	if ( n < len ) {
97		if ( result ) *result = (char *) 0;
98	} else {
99		if ( result ) *result = string + len;
100		for ( i = len; i-- > 0; ) {
101			*( string++ ) = c >> ( i << 3 );
102		}
103	}
104	return len;
105}
106